Patent US5000373A successfully refreshed from Google Patents.
Patent US4173552A successfully refreshed from Google Patents.
US4173552A
Expired / Lapsed
US
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Rubber additives
Assignee: CP HALL COMPANY
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Filing: 1976-02-17
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Granted: 1979-11-06
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Expires: 1996-02-17
Abstract
Abstract Aliphatic alcohols, esters of such alcohols and aliphatic dicarboxylic acids, mixtures of such alcohols and esters and mixtures of such alcohols and esters with aliphatic carboxylic acids are used as additives in the vulcanization of rubbers.
Inventors
- 👤 Vincent P. Kuceski
- 👤 Lenoir Black
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 21:58
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/09; C08K5/092; C08K5/05; C08K5/10
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
53 words
A natural or synthetic olefinic rubber composition comprising the rubber, sulfur and a vulcanization activating effective amount of a vulcanization activator for said rubber comprising an aliphatic polycarboxylic acid having 4 to 54 carbon atoms, wherein said activator is not volatile at 200° F. and has an acid number of at least 50.
Claim 2
Dependent Claim
53 words
A natural or synthetic olefinic rubber composition comprising the rubber, sulfur and a vulcanization activating effective amount of a vulcanization activator for said rubber comprising an aliphatic polycarboxylic acid having 4 to 54 carbon atoms, wherein said activator is not volatile at 200° F. and has an acid number of at least 50.
Claim 3
Dependent Claim
43 words
A composition as defined in claim 1 wherein said activator further includes an ester of an aliphatic alcohol having 12 to 28 carbon atoms and a carboxylic acid containing 4 to 54 carbon atoms and having a saponification number of at least 50.
Claim 4
Dependent Claim
21 words
A composition as defined in claim 2 wherein said acid of said ester is a dicarboxylic acid or a tricarboxylic acid.
Claim 5
Dependent Claim
19 words
A composition as defined in claim 2 wherein said carboxylic acid of said ester comprises an aliphatic polycarboxylic acid.
Claim 6
Dependent Claim
12 words
A composition as defined in claim 1 wherein said rubber is vulcanized.
Claim 7
Dependent Claim
12 words
A composition as defined in claim 1 wherein said rubber is unvulcanized.
Claim 8
Dependent Claim
19 words
A composition as defined in claim 1 wherein said activator further includes an aliphatic alcohol having 12-28 carbon atoms.
Claim 9
Dependent Claim
65 words
A natural or synthetic olefinic rubber composition comprising the rubber, sulfur and a vulcanization activating effective amount of a vulcanization activator for said rubber comprising a mixture of an aliphatic polycarboxylic acid having 4 to 54 carbon atoms having an acid number of at least 50 and an aliphatic alcohol having 12 to 28carbon atoms, and wherein said activator is not volatile at 200° F.
Claim 10
Dependent Claim
65 words
A natural or synthetic olefinic rubber composition comprising the rubber, sulfur and a vulcanization activating effective amount of a vulcanization activator for said rubber comprising a mixture of an aliphatic polycarboxylic acid having 4 to 54 carbon atoms having an acid number of at least 50 and an aliphatic alcohol having 12 to 28carbon atoms, and wherein said activator is not volatile at 200° F.
Claim 11
Dependent Claim
58 words
A natural or synthetic olefinic rubber composition comprising the rubber, sulfur and a vulcanization activating effective amount of a vulcanization activator for said rubber comprising an ester of an aliphatic alcohol having 12 to 28 carbon atoms and an aliphatic polycarboxylic acid having 4 to 54 carbon atoms, said activator having a saponification number of at least 50.
Claim 12
Dependent Claim
58 words
A natural or synthetic olefinic rubber composition comprising the rubber, sulfur and a vulcanization activating effective amount of a vulcanization activator for said rubber comprising an ester of an aliphatic alcohol having 12 to 28 carbon atoms and an aliphatic polycarboxylic acid having 4 to 54 carbon atoms, said activator having a saponification number of at least 50.
Claim 13
Dependent Claim
15 words
A composition as defined in claim 9 wherein said polycarboxylic acid is a dicarboxylic acid.
Claim 14
Dependent Claim
12 words
A composition as defined in claim 9 wherein said rubber is vulcanized.
Claim 15
Dependent Claim
12 words
A composition as defined in claim 9 wherein said rubber is unvulcanized.
Claim 16
Dependent Claim
112 words
A natural or synthetic olefinic rubber composition comprising the rubber, sulfur and a vulcanization activating effective amount of a vulcanization activator for said rubber comprising an ester, having a saponification number of at least 50, formed by reacting an aliphatic alcohol having 12 to 28 carbon atoms with a carboxylic acid selected from the group consisting of butyric, valeric, hexanoic, hepanoic, octanoic, pelargonic, capric, undeconoic, lauric, myristic, palmitic, stearic, behenic, naphthenic, succinic, glutaric, adipic, pimelic, suberic, azelaic, sebacic, dodecanedioic, brassylic, thapsic, phthalic, isophthalic, terephthalic, maleic, ##STR1## wherein one X is hydrogen and the other X is a carboxylic acid group, dimer oleic, aconitic, citric, tricarballylic, trimer oleic acid, trimellitic, and mixtures thereof.
Claim 17
Dependent Claim
112 words
A natural or synthetic olefinic rubber composition comprising the rubber, sulfur and a vulcanization activating effective amount of a vulcanization activator for said rubber comprising an ester, having a saponification number of at least 50, formed by reacting an aliphatic alcohol having 12 to 28 carbon atoms with a carboxylic acid selected from the group consisting of butyric, valeric, hexanoic, hepanoic, octanoic, pelargonic, capric, undeconoic, lauric, myristic, palmitic, stearic, behenic, naphthenic, succinic, glutaric, adipic, pimelic, suberic, azelaic, sebacic, dodecanedioic, brassylic, thapsic, phthalic, isophthalic, terephthalic, maleic, ##STR1## wherein one X is hydrogen and the other X is a carboxylic acid group, dimer oleic, aconitic, citric, tricarballylic, trimer oleic acid, trimellitic, and mixtures thereof.
Claim 18
Dependent Claim
51 words
A natural or synthetic olefinic rubber composition comprising the rubber, sulfur and a vulcanization activating effective amount of a vulcanization activator for said rubber comprising an ester having a saponification number of at least 50 formed by reacting an aliphatic alcohol having 12 to 28 carbon atoms with a monocarboxylic acid.
Claim 19
Dependent Claim
51 words
A natural or synthetic olefinic rubber composition comprising the rubber, sulfur and a vulcanization activating effective amount of a vulcanization activator for said rubber comprising an ester having a saponification number of at least 50 formed by reacting an aliphatic alcohol having 12 to 28 carbon atoms with a monocarboxylic acid.
Claim 20
Dependent Claim
35 words
A composition as defined in claim 14 wherein said monocarboxylic acid is selected from the group consisting of butyric, valeric, hexanoic, hepanoic, octanoic, pelargonic, capric, undeconoic, lauric, myristic, palmitic, stearic, behenic, naphthenic, and mixtures thereof.
Claim 21
Dependent Claim
15 words
A composition as defined in claim 14 wherein said acid is an aliphatic monocarboxylic acid.
References Cited (Backward Citations)
US3855165A
Cited
US3753968A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-11-05 | 1983-05-07 | 1983-11-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-11-05 | 1987-05-07 | 1987-11-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-11-05 | 1991-05-07 | 1991-11-06 | $7700.00 | Window Closed / Lapsed |